The curious minds at What If land on Proxima Centauri b and explore its alien environment, revealing climate, terrain, and habitability.

Attention human. You are receiving an interstellar radio transmission .And it could be coming from one of the nearest exoplanets, Proxima Centauri b.

What can star variability—changes in a star's brightness over time—teach astronomers about exoplanet habitability? This is what a recent study accepted for publication in The Astronomical Journal ...